There are three notable Sauls in the Bible:
1. Saul, the first King of Israel: This is the most well-known Saul. He was anointed by the prophet Samuel and reigned before David.
2. Saul, also known as Paul, the Apostle: Originally a persecutor of Christians, he had a dramatic conversion experience and became a prominent apostle and missionary.
3. Saul, a king of Edom: He is mentioned in Genesis 36:31-33 and 1 Chronicles 1:43-44.
So, in summary, there are three Sauls in the Bible.